Had troubles finding instructions such as administrators guide how to perform unattended installations of Sony_ Ericsson_ PC_ Suite_6 and started to get frusttrated so sent an email to Sony Ericsson Contact Center an got an surprising reply!

Unattended installation of PC Suite requires a special version of PC Suite which is not available on www.sonyericsson.com. You can download the software from the following FTP: ftp://secc:4seccUSE@83.241.148.5. Instructions are included in the file.